Abacus Harmonicus

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Abacus Harmonicus, or Abacum Arithmetico-Harmonicum is a table and tabular method described in Athanasius Kircher's comprehensive 1650 work on music, the Musurgia Vniversalis.[1] The purpose is to generate counterpoint combinations. Also mentioned in early editions of the Encyclopædia Britannica, it is best described by the author's caption: "wonderful table that reveals all the secret art of counterpoint".


  1. ^ Kircher, Athanasius (1650). Musurgia Vniversalis (in Latin). I. p. 362.